CN103918136A

CN103918136A - Connector

Info

Publication number: CN103918136A
Application number: CN201280054716.9A
Authority: CN
Inventors: 坂仓惠美
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2011-09-10
Filing date: 2012-04-09
Publication date: 2014-07-09
Anticipated expiration: 2032-04-09
Also published as: US9166339B2; EP2755284A1; WO2013035369A1; US20140242832A1; EP2755284A4; JP5686077B2; KR101565268B1; JP2013062025A; KR20140052077A

Abstract

The present invention achieves sink mark prevention and discharge of water within a hood part. A synthetic resin housing (10) has a hood part (17) that extends forward from a terminal holding part (11) and a guide wall part (19) in which a guide recessed part (15) is formed on the back end part of an inside surface in the terminal holding part (11). In the housing (10), a die cut pathway (20) is formed in the front to back direction from die cut recessed parts (21), with a form that recesses a region in front of a region corresponding to the guide recessed part (15) of the outer surface of the guide wall part (19), and die cut holes (22) with a form that passes through to the die cut recessed parts (21) and passes through a back surface wall (18).

Description

Connector

Technical field

The present invention relates to a kind of connector.

Background technology

In patent documentation 1, disclose a kind of connector, there is formed in mould plastic housing and be formed with the terminal fittings of the positive type of elongated thin slice at leading section.Below, according to Fig. 5, the feature of this connector is described.

Housing 100 is configured to, and will be formed with the terminal maintaining part 101 of the terminal accommodating chamber 102 connecting on fore-and-aft direction, form with the cover portion 103 of forwards extending from the front end of terminal maintaining part 101.The opening of the rearward end of terminal accommodating chamber 102 becomes the terminal insert port 107 for terminal fittings 106 is inserted, and the front region of terminal accommodating chamber 102 becomes for the terminal fittings of insertion 106 being remained to the stable posture portion 108 of not tilting.

Prior art document

Patent documentation

Patent documentation 1: Japanese kokai publication hei 07-220798 communique

Summary of the invention

The problem that invention will solve

Above-mentioned connector, as the technical scheme for terminal fittings 106 being inserted into swimmingly to terminal accommodating chamber 102, is formed with the guide recess 109 of the form more caving in than the inner surface of stable posture portion 108 at the inner surface of terminal insert port 107.But this guide recess 109 is the forms at the inner surface otch of the outside wall portions 104 of the outer surface of terminal maintaining part 101 and formation terminal accommodating chamber 102.Therefore, in outside wall portions 104 with than terminal insert port 107 near in region corresponding to the stable posture portion 108 in front, exist wall thickness to become blocked up and produce the possibility of shrink mark.

On the other hand, so that cover portion 103 posture upwards while using this connector, the moisture or the dew that flow in cover portion 103 can accumulate, and consequently, also have the possibility that seepage occurs between terminal fittings 106.

The present invention completes according to above-mentioned situation, and object is, realize shrink mark prevent and cover portion in draining.

For solving the technical scheme of problem

As the technical scheme for realizing above-mentioned purpose, connector of the present invention, is characterized in that, comprising: plastic housing; Terminal fittings; Terminal maintaining part, forms described housing, is formed with the terminal accommodating chamber connecting on fore-and-aft direction; Cover portion, forms described housing, is shaped integratedly with described terminal maintaining part, forwards extends from the front end of described terminal maintaining part; Outside wall portions, forms the outer surface of described terminal maintaining part, and faces described terminal accommodating chamber; Rear surface wall, forms described cover portion, has from described outside wall portions to the outstanding form of foreign side; Terminal insert port, forms the peristome of the rearward end of described terminal accommodating chamber, for inserting described terminal fittings; Stable posture portion, forms the front region of described terminal accommodating chamber, for the described terminal fittings inserting is remained to tilt; Guide recess, is formed on the region corresponding with described terminal insert port in the inner surface of described outside wall portions, has the form more caving in than the inner surface of described stable posture portion; Guiding wall portion, form in described outside wall portions in the region that is upwards formed with described guide recess week; And the molding path of fore-and-aft direction, be formed at described housing, formed by molding recess and a nib, described molding recess has region that ratio in the outer surface that makes described guiding wall portion is corresponding with the described guide recess form near the area depression in front, and described nib has the form that is communicated with and has connected described rear surface wall with described molding recess.

In this connector, by forming molding path, ratio in the outer surface of the guiding wall portion region corresponding with guide recess near the region in front, with the wall thickness attenuation in region corresponding to stable posture portion, thereby prevent the generation of shrink mark.In addition, the outside discharge in rear to cover portion through molding path of the moisture in cover portion.And then molding path has the form of extending and connect the rear surface wall of cover portion on the outer surface of guiding wall portion along fore-and-aft direction, therefore can form by the mould of forwards molding.Therefore, also can not use to the sliding mould of the direction molding intersecting with fore-and-aft direction.

Brief description of the drawings

Fig. 1 is the stereogram of the housing of embodiment 1.

Fig. 2 is the vertical view of housing.

Fig. 3 is the front view of housing.

Fig. 4 is the cutaway view that the state of terminal fittings is installed on housing.

Fig. 5 is the cutaway view of conventional example.

Embodiment

Connector of the present invention can be also, has the drainage path of fore-and-aft direction, and this drainage path is formed at the surrounding wall portion that forms described cover portion, has and makes the inner peripheral surface of described surrounding wall portion be connected and be straight line shape with the form of groove depression and with described molding path.

According to this connector, the moisture in cover portion is discharged to the outside, rear of cover portion through drainage path and molding path.Because drainage path is connected and is straight line shape with a modular space, therefore drainage effect is good.

< embodiment 1>

Below, with reference to Fig. 1～Fig. 4 to embodiment specific the present invention 1 is described.As shown in Figure 4, the connector of the present embodiment 1 is configured to the terminal fittings 25 of the positive type that has housing 10 and be formed with elongated thin slice 26 at leading section.

Housing 10 is formed in mould plastic parts, is configured to the terminal maintaining part 11 that is formed with the pair of right and left terminal accommodating chamber 12 connecting on fore-and-aft direction, forms with the cover portion 17 of forwards extending from the front end of terminal maintaining part 11.The opening of the rearward end of terminal accommodating chamber 12 becomes the terminal insert port 13 for terminal fittings 25 is inserted.The front region (than the more region in front of terminal insert port 13) of terminal accommodating chamber 12 becomes for the terminal fittings of insertion 25 being remained to the stable posture portion 14 of not tilting.

Terminal maintaining part 11 has outside wall portions 16, and this outside wall portions 16 forms the outer surface of terminal maintaining part 11, and in the face of in terminal accommodating chamber 12.The wall portion at the end face that upwards forms terminal accommodating chamber 12 week in outside wall portions 16 becomes guiding wall portion 19.The region corresponding with terminal insert port 13 in the inner surface (end face of terminal accommodating chamber 12) of guiding wall portion 19, as the structure for swimmingly terminal fittings 25 being inserted into terminal accommodating chamber 12, be formed with the guide recess 15 of the form more caving in than the inner surface of stable posture portion 14 (end face)., the surface area being upwards formed with guide recess 15 week in outside wall portions 16 becomes guiding wall portion 19.By forming guide recess 15, it is larger than the height dimension of stable posture portion 14 that the height dimension of terminal insert port 13 becomes.

Cover portion 17 has the rear surface wall 18 from the guiding wall portion 19 of terminal maintaining part 11 to the outstanding form of foreign side (top).At the rear surface wall 18 of cover portion 17 from guiding wall portion 19 is outstanding to foreign side, when will be only mould (omitting diagram) by die sinking on fore-and-aft direction during by housing 10 moulding, the moulding by the mould of rearward die sinking of the outer surface (upper surface) of guiding wall portion 19, therefore the outer surface of guiding wall portion 19 forms same plane shape from its front end to rear end, can not form difference of height at the upper surface of guiding wall portion 19.On the other hand, the inner surface of guiding wall portion 19 (lower surface) is by forming guide recess 15 and produce difference of height between the end face of terminal insert port 13 and the end face of stable posture portion 14 in terminal insert port 13.

Therefore, even if the size up and down (gauge) of guiding wall portion 19 is suppressed in the rearward end region corresponding with terminal insert port 13 for necessary minimum size, in the region corresponding with stable posture portion 14, the gauge of outside wall portions 16 also can unnecessarily increase.Therefore, the part corresponding with stable posture portion 14 in outside wall portions 16 has the possibility that produces the bad distortion that is called " shrink mark " in the time of mould molding.

In addition, the connector that uses the present embodiment in the posture with cover portion 17 upward openings, when flow in cover portion 17 or in the interior generation dewfall of cover portion 17 from outside water, exist the moisture that flows into or dew to accumulate in cover portion 17 and the water that accumulates due to this produces the possibility of seepage between terminal fittings 25.

As reply, in the present embodiment, on housing 10, form molding path 20.Molding path 20 is played nibs 22 by five molding recesses 21 as shown in Fig. 1,2,4 and as shown in Figure 3,4 five and is formed, this molding recess 21 is formed in terminal maintaining part 11, and on fore-and-aft direction, extend with linearity, this plays the rear surface wall 18 of nib 22 front and back perforation cover portions 17.Five molding recesses 21 above configure with certain arranged with interval at left and right directions (Width).

As shown in Figure 4, the formation region on the fore-and-aft direction of molding recess 21 spread all over from the rear end face of rear surface wall 18 to than the front end of guide recess 15 a little near the position in front (, than the rear end of stable posture portion 14 a little near the position in front).As shown in Figure 3, five are played nibs 22 and have the width dimensions identical with molding recess 21, and with the spacing configuration identical with five molding recesses 21.Therefore, five molding recesses 21 are corresponding one to one with five nibs 22, and corresponding molding recess 21 is in direct communication with one another with a nib 22.

As mentioned above, in the present embodiment, on housing 10, form the molding path 20 of fore-and-aft direction, this molding path 20 is made up of molding recess 21 and a nib 22, this molding recess 21 has the form caving near the region (region corresponding with stable posture portion 14) in front in the ratio region corresponding with guide recess 15 in the outer surface that makes guiding wall portion 19, and this plays nib 22 and has the form that is directly communicated with and has connected rear surface wall 18 with molding recess 21.According to this structure, form molding path 20, thereby make ratio guide recess 15 in guiding wall portion 19 near the region in front, i.e. the wall thickness attenuation in the region corresponding with stable posture portion 14, thereby prevent the generation of shrink mark.

In addition, the moisture in cover portion 17 is discharged to the outside, rear of cover portion 17 through molding path 20.And then molding path 20 has the form of extending and connect the rear surface wall 18 of cover portion 17 on the outer surface of guiding wall portion 19 along fore-and-aft direction, therefore can form by the mould of forwards molding.Therefore, also can not use to the sliding mould of the direction molding intersecting with fore-and-aft direction.

In addition, the drainage path 24 that is formed with five fore-and-aft directions on the upper surface wall 23 (as the surrounding wall portion of constitutive requirements of the present invention) that forms cover portion 17, this drainage path 24 has makes the inner peripheral surface of upper surface wall 23 be connected and be straight line shape with the form of groove depression and with molding path 20.These five drainage paths 24 have the width dimensions identical with molding path 20, and with the spacing configuration identical with molding path 20.Therefore, drainage path 24 is corresponding one to one with molding path 20, and corresponding drainage path 24 and molding path 20 are direct and be straight line shape and be communicated with each other.By forming this drainage path 24, moisture in cover portion 17 is through drainage path 24 and molding path 20 and to outside discharge the in rear of cover portion 17.Because drainage path 24 is connected and is straight line shape with a modular space, therefore drainage effect is good.

Other execution modes of < >

The present invention is not limited to by the embodiment of above-mentioned record and brief description of the drawings, and for example following execution mode is also included in the technical scope of the present invention.

(1) in the above-described embodiments, the quantity in molding path 20 is five, but the quantity in molding path can be below four, can also be more than six.

(2) in the above-described embodiments, molding path 20 is only formed at the outer surface (upper surface) of guiding wall portion 19 (the wall portion that is formed with guide recess 15 in outside wall portions 16), but except the outer surface of guiding wall portion 19, molding path also can be formed in the lower wall portion that does not form guide recess in the outside wall portions of terminal maintaining part or the outer surface (lower surface or side) of side wall portion.

(3) in the above-described embodiments, be formed with the drainage path 24 that is the groove shape that straight line shape is connected with molding path 20 forming the upper surface wall 23 (surrounding wall portion) of cover portion 17, but can be also the form at the drainage path 24 of cover portion 17 interior formation groove shape not.

(4) in the above-described embodiments, molding path 20 has identical width dimensions with drainage path 24, but can be also that molding path has different width dimensions from drainage path.

(5) in the above-described embodiments, the quantity that plays nib 22 and the molding recess 21 of the outer surface of guiding wall portion 19 of the perforation rear surface wall 18 in molding path 20 is identical and be communicated with one to one, but can be also one form that nib is communicated with multiple molding recesses.In this case, the quantity that plays nib can be one, can be also multiple.

Label declaration

10 ... housing

11 ... terminal maintaining part

12 ... terminal accommodating chamber

13 ... terminal insert port

14 ... stable posture portion

15 ... guide recess

16 ... outside wall portions

17 ... cover portion

18 ... rear surface wall

19 ... guiding wall portion

20 ... molding path

21 ... molding recess

22 ... play nib

23 ... upper surface wall (surrounding wall portion)

24 ... drainage path

25 ... terminal fittings

Claims

1. a connector, is characterized in that, comprising:

Plastic housing;

Terminal fittings;

Terminal maintaining part, forms described housing, is formed with the terminal accommodating chamber connecting on fore-and-aft direction;

Cover portion, forms described housing, is shaped integratedly with described terminal maintaining part, forwards extends from the front end of described terminal maintaining part;

Outside wall portions, forms the outer surface of described terminal maintaining part, and faces described terminal accommodating chamber;

Rear surface wall, forms described cover portion, has from described outside wall portions to the outstanding form of foreign side;

Terminal insert port, forms the peristome of the rearward end of described terminal accommodating chamber, for inserting described terminal fittings;

Stable posture portion, forms the front region of described terminal accommodating chamber, for the described terminal fittings inserting is remained to tilt;

Guide recess, is formed on the region corresponding with described terminal insert port in the inner surface of described outside wall portions, has the form more caving in than the inner surface of described stable posture portion;

Guiding wall portion, form in described outside wall portions in the region that is upwards formed with described guide recess week; And

The molding path of fore-and-aft direction, be formed at described housing, formed by molding recess and a nib, described molding recess has region that ratio in the outer surface that makes described guiding wall portion is corresponding with the described guide recess form near the area depression in front, and described nib has the form that is communicated with and has connected described rear surface wall with described molding recess.

2. connector according to claim 1, is characterized in that,

Have the drainage path of fore-and-aft direction, this drainage path is formed at the surrounding wall portion of the described cover of formation portion, has and makes the inner peripheral surface of described surrounding wall portion be connected and be straight line shape with the form of groove depression and with described molding path.